What does AVERAGE CHARGES mean?

AVERAGE CHARGES meaning in Law Dictionary

"typical costs for toll and transport" are recognized to indicate, and do suggest, charges made at a mean rate, acquired by dividing the complete receipts for toll AVERAGE 109 AVOWRY and transport because of the whole quantity of tonnage transported, decreased to a common standard of tons relocated one mile. Hersh v. Railway Co., 74 Pa. 190.